This European Telecommunication Standard (ETS) describes in general terms the Link Access Procedures on the Dm channel, LAPDm. The application of this protocol to other channel types is for further study. Details are provided in GSM 04.06. The purpose of LAPDm is to convey information between layer 3 entities across the GSM PLMN radio interface (MS to network interface) using the Dm channel.
PUBLISHED
SSH ETS 300 937:1997
60.60
Standard published
Oct 26, 2023